Refine your search:     
Report No.

Analysis of chirp-pulse generated from ERL-FEL at perfect synchronism

Iijima, Hokuto; Nagai, Ryoji; Nishimori, Nobuyuki; Hajima, Ryoichi

We report an experimental result of measuring a mid-infrared FEL optical pulse by means of frequency-resolved optical gating (FROG) and a comparison with a numerical simulation result. The measurement was performed at JAEA ERL-FEL with the perfect synchronism condition. The FEL optical pulse was measured to be 0.6 ps of the pulse duration and 4.6 THz of the bandwidth. The simulation results were 0.5 ps and 4.4 THz, respectively. The measurement result was good agreement with the simulation result within a measurement error. The chirp in frequency domain followed a cubic function. This behavior is the so-called "self-chirp", which is not caused by a dispersive material but relation of electron-bunch parameters and FEL-undulator parameters.



- Accesses





[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.